Horn support



Dec. 22, 1931. R SARYBACHER 1,837,491

HORN SUPPORT Filed Dec. 19, 1929 2 Sheets-Sheet 1 IN VEN TOP R 340mm? ATTORNEY R. I. SARBACHER HORN SUPPORT Dec. 22, 1931.

Filed Dec. 19, 1929 2 Sheets-Sheet 2 Fla. 2

//v VEN 70/? R SARBA cfle k i? M wrap/v5) Patented Dec. 1931 I UNITED STATES PATENT OFFICE ROBERT I. SARBACHER, OF NEW YORK, N. Y., ASSIGNOR '.I.O ELECTRICAL RESEAIBBH PRODUCTS INC., 01: NEW YORK. N. Y, A CORPORATION OF non/n surro'n'r Application filed December 19, 1929. Serial No. 415,218.

This invent-ion relates to horn supports and more particularly to horn towers 'for use in sound picture installations.

The principal object of the invention is the provision of a simple and inexpensive support for holding a horn in an adjusted position.

One embodiment of the invention contemplates a movable tower having a rotatable frame for suspending a sound-picture horn therefrom and provided with mechanisms for tilting and rotating the horn with respect to the tower.

It is believed that a complete understanding of the invention may be had from the following detailed description when taken in corqunction with the accompanying draw-- ings, whereln embodying the invention; Fig. 2 is a fragmentary perspective view of a modified support for the horn, and

Fig. 3 is a fragmentary perspective show-- ing another modified support for the horn.

Referring now to the drawings wherein like reference numerals indicate similar parts throughout the several views, the numeral 10 designates generally a portable horn tower comprising a plurality of uprights 1111 interconnected by a plurality of crossbars 1212 to form a rectangular frame work on which is fastened a ladder 13. The lower ends of the uprights are provided with rollers or casters 14-14 to permit the tower to be moved readilyto various locations on a stage, for example, to obtain the best acoustical effeet in a theater.

Across the top of the tower are secured two parallel channels 17-17 on which is mounted medially of the ends thereof a bearing plate 18. As shown in Fig. 1,'a rotatable frame 19 is suspended from a bolt 20 journaled in the bearing plate 18. The frame 19 is of triangular shape and carries at its base or forward end chains or ropes 2121 for suspending the large end of a horn 22 therefrom. The rear end of the horn is adjustably suspended by means of a chain or rope 23 secured to a bracket 24 on the horn and passing over a pulley 25 fastened on the apex of the frame Fig. 1 is a perspective view of a horn tower and thence through a guide-eyelet 26 on the horn to a tie-bar 27 of the tower. Also secured to the apex or rear end of the frame 19 are two ropes 3030 one passing over a pulley 31 on an upper crossbar 12 on one side of the frame, and the other passing over a pulley 32 positioned on a crossbar on the opposite side of the frame and both of the ropes passing from the pulleys to the tie-'bar'27.

In the use of the horn support with sound picture productions the tower is moved on the stage to a desired location adjacent the screen on which the picture is projected. The horn is then rotated clockwise orcounter-clockwise by the use of the ropes 30-30 and movedin a vertical plane by means of the pulley 25and the rope 23 to properly position the horn according to the acoustics of the theater to obv tain the best sound effect.

In Fig. 2 is illustrated a modified horn support consisting of a wheel-shaped member 35 which has an upwardly extending shaft portion 36 which is journaled in the bearing plate 18 and which'has a worm-wheel 37 mounted thereon so as to mesh with a worm 38. The worm 38 is manually rotated by a I shaft 39 which, as seen from the front of the tower, is journaled in a bearing 40 secured to the right-hand channel 17 and in a bearing 41 mounted on the upper right-hand crossbar 12. The bearing 41 is-provided By turning a crank 44 on the" shaft 39 the horn may be rotated through a predetermined angle and by moving the rope 23 the horn may be tilted. I

Another modification of the horn support is shown in Fig. 3 wherein the horn is suspended from the triangular frame 19 as hasbeen previously described for the embodiment of the invention shown in Fig. 1, with this distinction that the bolt 20 is replaced by another bolt 45 having a horizontal opening 46 through which a rod 47 is free to slide.

Near the outer end of this rod is located a headed pin 48 free to move up and down in a slot in the rod so that upon the rod being moved'to set the horn in a given position, the rod may be brought into alignment with the nearest of a series of apertures 49 in the upper right-hand c'rossb'ar 12 and the pin 48'dropped into the aperture, thus to locate the horn in a predetermined position.

What is claimed is:

1. A horn support comprising a tower, means comprising a non-rigid material for supporting a horn within-the tower, means for maintaining the supporting means in a:

predetermined position, and means for movmg the horn vertically with respect to the supporting means.

2. A horn support comprising a tewer, means for suspending a horn therein threugh the agency of non-rigid material, means for adjusting the position of the horn verticaily and horizontally, and means for maintaining the horn in an adjusted position.

3. A horn support comprising a portable tower, a rotatable frame within the tower, means for adjustably suspending a horn from the frame through the agency of non-rigid material, means for rotating the frame, and

means for retaining the .frame in predetermined adjusted positions.

4. A horn support comprising a portable I tower, a rotatable frame within the tower,

means for suspending the mouth end of a horn from the frame, means for adjustahly suspending the other end of the horn from the frame to permit tilting of the horn, and means for rotating the frame to adjust the position of the-horn.

. 5. A sound picture horn support compris inga movable tower,'a rotatable frame moun ed in the tower, means for suspending the large end of a sound picture horn from one portion of the frame, adjustable means for suspending the .sinall end of the horn. in tilted position, and means for rotating and securing the frame in a predetermined position relative to the tower 6. A horn support comprising a movable tower, a triangular frame within the tower, means for suspending one end of a horn from 'the base of the triangular frame, means vfer adjustably suspending the other end of the horn from the apex of the frame to permit tilting of the horn, means for rotating. the frame, and means for retaining the frame in a predetermined adjusted position,

Signed at New York N, Yu, this of November, 1929.

ROBERT L 

